<?php
/**
 * @brief		Moderator Control Panel Extension: Content Pending Approva
 * @since		11 Dec 2013
 */

namespace IPS\core\extensions\core\ModCp;

/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !\defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
	exit;
}

/**
 * Content Pending Approval
 */
class _Unapproved
{
	/**
	 * Returns the primary tab key for the navigation bar
	 *
	 * @return	string
	 */
	public function getTab()
	{
		return 'approval';
	}
	
	/**
	 * Execute
	 *
	 * @return	void
	 */
	public function manage()
	{
		\IPS\Output::i()->breadcrumb[] = array( NULL, \IPS\Member::loggedIn()->language()->addToStack('modcp_approval') );
		\IPS\Output::i()->title = \IPS\Member::loggedIn()->language()->addToStack('modcp_approval');

		if ( isset( \IPS\Request::i()->go ) )
		{
			$showSplash = FALSE;

			/* If the user wants to skip this splash next time, set a cookie we can look for */
			if ( isset( \IPS\Request::i()->skipnext ) )
			{
				\IPS\Request::i()->setCookie( 'ipsApprovalQueueSplash', true, \IPS\DateTime::ts( time() )->add( new \DateInterval( 'P1Y' ) ) );	
			}	

			$_SESSION['ipsApprovalQueueSplash'] = TRUE;		
		}
		elseif ( isset( $_SESSION['ipsApprovalQueueSplash'] ) )
		{
			$showSplash = FALSE;
		}
		elseif ( isset( \IPS\Request::i()->cookie['ipsApprovalQueueSplash'] ) )
		{
			$showSplash = FALSE;
			$skipNextTime = FALSE;
		}
		else
		{
			$showSplash = TRUE;
			$skipNextTime = TRUE;
		}

		if ( $showSplash )
		{
			return \IPS\Theme::i()->getTemplate('modcp')->approvalQueueSplash( $skipNextTime );
		}
		else
		{
			return $this->_getNext();
		}
	}
	
	/**
	 * Get Next Content
	 *
	 * @return	string
	 */
	protected function _getNext()
	{
		if ( !isset( $_SESSION['ipsApprovalQueueSkip'] ) )
		{
			$_SESSION['ipsApprovalQueueSkip'] = array();
		}
		if ( isset( \IPS\Request::i()->skip ) )
		{
			if ( !isset( $_SESSION['ipsApprovalQueueSkip'][ \IPS\Request::i()->class ] ) )
			{
				$_SESSION['ipsApprovalQueueSkip'][ \IPS\Request::i()->class ] = array();
			}
			$_SESSION['ipsApprovalQueueSkip'][ \IPS\Request::i()->class ][] = \IPS\Request::i()->id;
			
			if ( \IPS\Request::i()->isAjax() )
			{
				\IPS\Output::i()->json( 'OK' );
			}
		}
				
		foreach ( \IPS\Content::routedClasses( TRUE ) as $class )
		{
			if ( \in_array( 'IPS\Content\Hideable', class_implements( $class ) ) )
			{
				$where = array();				
				if ( isset( $class::$databaseColumnMap['hidden'] ) )
				{
					$where[] = array( $class::$databaseTable . '.' . $class::$databasePrefix . $class::$databaseColumnMap['hidden'] . '=1' );
				}
				elseif ( isset( $class::$databaseColumnMap['approved'] ) )
				{
					$where[] = array( $class::$databaseTable . '.' .  $class::$databasePrefix . $class::$databaseColumnMap['approved'] . '=0' );
				}
				else
				{
					continue;
				}
				
				if ( isset( $_SESSION['ipsApprovalQueueSkip'][ md5( $class ) ] ) )
				{
					$where[] = '!' . \IPS\Db::i()->in( $class::$databaseTable . '.' . $class::$databasePrefix . $class::$databaseColumnId, $_SESSION['ipsApprovalQueueSkip'][ md5( $class ) ] );
				}

				if ( is_subclass_of( $class, 'IPS\Content\Comment' ) AND $class::commentWhere() !== NULL )
				{
					$where[] = $class::commentWhere();
				}

				foreach ( $class::getItemsWithPermission( $where, "{$class::$databasePrefix}{$class::$databaseColumnId} ASC", 1 ) as $item )
				{					
					$idColumn = $item::$databaseColumnId;
					$container = NULL;
					if ( $item instanceof \IPS\Content\Comment AND !( $item instanceof \IPS\core\Statuses\Reply ) )
					{
						if ( $item instanceof \IPS\Content\Review )
						{
							$approveUrl = $item->url()->setQueryString( array( 'do' => 'unhideReview', 'review' => $item->$idColumn ) )->csrf();
							$deleteUrl = $item->url()->setQueryString( array( 'do' => 'deleteReview', 'review' => $item->$idColumn ) )->csrf();
							$hideUrl = $item->url()->setQueryString( array( 'do' => 'hideReview', 'review' => $item->$idColumn, '_fromApproval' => 1 ) )->csrf();
						}
						else
						{
							$approveUrl = $item->url()->setQueryString( array( 'do' => 'unhideComment', 'comment' => $item->$idColumn ) )->csrf();
							$deleteUrl = $item->url()->setQueryString( array( 'do' => 'deleteComment', 'comment' => $item->$idColumn ) )->csrf();
							$hideUrl = $item->url()->setQueryString( array( 'do' => 'hideComment', 'comment' => $item->$idColumn, '_fromApproval' => 1 ) )->csrf();
						}
						$itemClass = $item::$itemClass;
						$ref = base64_encode( json_encode( array( 'app' => $itemClass::$application, 'module' => $itemClass::$module, 'id_1' => $item->mapped('item'), 'id_2' => $item->id ) ) );
						$title = $item->item()->mapped('title');
					}
					else
					{
						$approveUrl = $item->url()->setQueryString( array( 'do' => 'moderate', 'action' => 'unhide' ) )->csrf();
						$deleteUrl = $item->url()->setQueryString( array( 'do' => 'moderate', 'action' => 'delete' ) )->csrf();
						$hideUrl = $item->url()->setQueryString( array( 'do' => 'moderate', 'action' => 'hide', '_fromApproval' => 1 ) )->csrf();

						if( $item instanceof \IPS\core\Statuses\Reply )
						{
							$itemClass = $item::$itemClass;
							$ref = base64_encode( json_encode( array( 'app' => $itemClass::$application, 'module' => $itemClass::$module, 'id_1' => $item->mapped('item'), 'id_2' => $item->id ) ) );

							$approveUrl = $approveUrl->setQueryString( 'type', 'reply' )->setQueryString( 'reply', $item->id );
							$deleteUrl = $deleteUrl->setQueryString( 'type', 'reply' )->setQueryString( 'reply', $item->id );
							$hideUrl = $hideUrl->setQueryString( 'type', 'reply' )->setQueryString( 'reply', $item->id );
						}
						else
						{
							$ref = base64_encode( json_encode( array( 'app' => $item::$application, 'module' => $item::$module, 'id_1' => $item->id ) ) );
						}

						try
						{
							$container = $item->container();
						}
						catch ( \Exception $e ) { }

						$title = $item->mapped('title');
					}
					$skipUrl = \IPS\Http\Url::internal( 'app=core&module=modcp&controller=modcp&tab=approval', 'front', 'modcp_approval' )->setQueryString( array( 'skip' => '1', 'class' => md5( $class ), 'id' => $item->$idColumn ) );
					
					if ( !$item->canUnhide() )
					{
						$approveUrl = NULL;
					}
					if ( !$item->canDelete() )
					{
						$deleteUrl = NULL;
					}
					if ( !$item->canHide() )
					{
						$hideUrl = FALSE;
					}
					
					$return = \IPS\Theme::i()->getTemplate('modcp')->approvalQueueHeader( $item, $approveUrl, $skipUrl, $deleteUrl, $hideUrl );

					$return .= $item->approvalQueueHtml( $ref, $container, $title );

					if ( \IPS\Request::i()->isAjax() )
					{
						return \IPS\Output::i()->json( array( 'html' => $return, 'count' => $this->getApprovalQueueCount( TRUE ) ) );
					}
					else
					{
						return \IPS\Theme::i()->getTemplate('modcp')->approvalQueue( $return );
					}
				}
			}
		}
		if ( \IPS\Settings::i()->clubs and \IPS\Settings::i()->clubs_require_approval and \IPS\Member::loggedIn()->modPermission('can_access_all_clubs') )
		{
			$where = array( 'approved=0' );
			if ( isset( $_SESSION['ipsApprovalQueueSkip'][ md5( 'IPS\Member\Club' ) ] ) )
			{
				$where[0] .= ' AND ' . \IPS\Db::i()->in( 'id', $_SESSION['ipsApprovalQueueSkip'][ md5( 'IPS\Member\Club' ) ], TRUE );
			}
			
			foreach ( \IPS\Member\Club::clubs( NULL, NULL, 'name', FALSE, array(), $where ) as $club )
			{
				$approveUrl = $club->url()->setQueryString( array( 'do' => 'approve', 'approved' => 1 ) )->csrf();
				$deleteUrl = $club->url()->setQueryString( array( 'do' => 'approve', 'approved' => 0 ) )->csrf();
				$skipUrl = \IPS\Http\Url::internal( 'app=core&module=modcp&controller=modcp&tab=approval', 'front', 'modcp_approval' )->setQueryString( array( 'skip' => '1', 'class' => md5( 'IPS\Member\Club' ), 'id' => $club->id ) );
				
				$return = \IPS\Theme::i()->getTemplate('modcp')->approvalQueueHeader( NULL, $approveUrl, $skipUrl, $deleteUrl, FALSE );
				$return .= \IPS\Theme::i()->getTemplate('clubs')->clubCard( $club, TRUE );
				
				\IPS\Output::i()->cssFiles = array_merge( \IPS\Output::i()->cssFiles, \IPS\Theme::i()->css( 'styles/clubs.css', 'core', 'front' ) );
				if ( \IPS\Theme::i()->settings['responsive'] )
				{
					\IPS\Output::i()->cssFiles = array_merge( \IPS\Output::i()->cssFiles, \IPS\Theme::i()->css( 'styles/clubs_responsive.css', 'core', 'front' ) );
				}
				
				if ( \IPS\Request::i()->isAjax() )
				{
					return \IPS\Output::i()->json( array( 'html' => $return, 'count' => $this->getApprovalQueueCount( TRUE ) ) );
				}
				else
				{
					return \IPS\Theme::i()->getTemplate('modcp')->approvalQueue( $return );
				}
			}
		}
		
		/* Did we skip any? If so, clear it and loop through again. */
		if ( \count( $_SESSION['ipsApprovalQueueSkip'] ) )
		{
			$_SESSION['ipsApprovalQueueSkip'] = array();
			return $this->_getNext();
		}
		
		if ( \IPS\Request::i()->isAjax() )
		{
			return \IPS\Output::i()->json( array( 'html' => \IPS\Theme::i()->getTemplate('modcp')->approvalQueueEmpty(), 'count' => 0 ) );
		}
		else
		{
			return \IPS\Theme::i()->getTemplate('modcp')->approvalQueueEmpty();
		}
	}

	/**
	 * Get the approval queue count
	 *
	 * @param	bool	$bypassCache	Ignore cache and refetch the count
	 * @return	int
	 */
	public function getApprovalQueueCount( $bypassCache = FALSE )
	{
		try
		{
			if( $bypassCache === TRUE )
			{
				throw new \OutOfRangeException;
			}

			$approvalQueueCount = \IPS\Data\Cache::i()->getWithExpire( 'modCpApprovalQueueCount_' . \IPS\Member::loggedIn()->member_id, TRUE );
		}
		catch ( \OutOfRangeException $e )
		{
			$approvalQueueCount = 0;

			foreach ( \IPS\Content::routedClasses( TRUE ) as $class )
			{
				if ( \in_array( 'IPS\Content\Hideable', class_implements( $class ) ) )
				{
					$where = array();				
					if ( isset( $class::$databaseColumnMap['hidden'] ) )
					{
						$where[] = array( $class::$databaseTable . '.' . $class::$databasePrefix . $class::$databaseColumnMap['hidden'] . '=1' );
					}
					elseif ( isset( $class::$databaseColumnMap['approved'] ) )
					{
						$where[] = array( $class::$databaseTable . '.' . $class::$databasePrefix . $class::$databaseColumnMap['approved'] . '=0' );
					}
					else
					{
						continue;
					}
					
					if ( isset( $_SESSION['ipsApprovalQueueSkip'][ md5( $class ) ] ) )
					{
						$where[] = '!' . \IPS\Db::i()->in( $class::$databaseTable . '.' . $class::$databasePrefix . $class::$databaseColumnId, $_SESSION['ipsApprovalQueueSkip'][ md5( $class ) ] );
					}

					if ( is_subclass_of( $class, 'IPS\Content\Comment' ) AND $class::commentWhere() !== NULL )
					{
						$where[] = $class::commentWhere();
					}

					$approvalQueueCount += $class::getItemsWithPermission( $where, NULL, 1, 'read', \IPS\Content\Hideable::FILTER_AUTOMATIC, 0, NULL, FALSE, FALSE, FALSE, TRUE );
				}
			}

			if ( \IPS\Settings::i()->clubs and \IPS\Settings::i()->clubs_require_approval and \IPS\Member::loggedIn()->modPermission('can_access_all_clubs') )
			{
				$approvalQueueCount += \IPS\Db::i()->select( 'COUNT(*)', 'core_clubs', 'approved=0' )->first();
			}

			\IPS\Data\Cache::i()->storeWithExpire( 'modCpApprovalQueueCount_' . \IPS\Member::loggedIn()->member_id, $approvalQueueCount, \IPS\DateTime::create()->add( new \DateInterval( 'PT15M' ) ), TRUE );
		}

		return $approvalQueueCount;
	}
}